Annotation of parser3/src/main/pa_common.C, revision 1.235
1.15 paf 1: /** @file
1.16 paf 2: Parser: commonly functions.
3:
1.205 paf 4: Copyright(c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
1.101 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.16 paf 6:
1.210 paf 7: * BASE64 part
8: * Authors: Michael Zucchi <notzed@ximian.com>
9: * Jeffrey Stedfast <fejj@ximian.com>
10: *
11: * Copyright 2000-2004 Ximian, Inc. (www.ximian.com)
12: *
13: * This program is free software; you can redistribute it and/or modify
14: * it under the terms of the GNU General Public License as published by
15: * the Free Software Foundation; either version 2 of the License, or
16: * (at your option) any later version.
17: *
18: * This program is distributed in the hope that it will be useful,
19: * but WITHOUT ANY WARRANTY; without even the implied warranty of
20: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21: * GNU General Public License for more details.
22: *
23: * You should have received a copy of the GNU General Public License
24: * along with this program; if not, write to the Free Software
25: * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
26: *
27: */
28:
1.235 ! misha 29: static const char * const IDENT_COMMON_C="$Date: 2008-06-11 11:38:35 $";
1.1 paf 30:
31: #include "pa_common.h"
1.4 paf 32: #include "pa_exception.h"
1.154 paf 33: #include "pa_hash.h"
1.14 paf 34: #include "pa_globals.h"
1.154 paf 35: #include "pa_charsets.h"
1.214 paf 36: #include "pa_http.h"
1.223 misha 37: #include "pa_request_charsets.h"
1.98 paf 38:
1.93 paf 39: // some maybe-undefined constants
40:
1.82 paf 41: #ifndef _O_TEXT
42: # define _O_TEXT 0
43: #endif
44: #ifndef _O_BINARY
45: # define _O_BINARY 0
1.47 paf 46: #endif
1.80 paf 47:
1.138 paf 48: #ifdef HAVE_FTRUNCATE
49: # define PA_O_TRUNC 0
50: #else
51: # ifdef _O_TRUNC
52: # define PA_O_TRUNC _O_TRUNC
53: # else
54: # error you must have either ftruncate function or _O_TRUNC bit declared
55: # endif
1.154 paf 56: #endif
1.176 paf 57:
1.154 paf 58: // defines for globals
59:
60: #define FILE_STATUS_NAME "status"
61:
62: // globals
63:
64: const String file_status_name(FILE_STATUS_NAME);
65:
66: // functions
1.127 paf 67:
1.154 paf 68: void fix_line_breaks(char *str, size_t& length) {
1.87 paf 69: //_asm int 3;
1.154 paf 70: const char* const eob=str+length;
71: char* dest=str;
1.72 parser 72: // fix DOS: \r\n -> \n
73: // fix Macintosh: \r -> \n
1.154 paf 74: char* bol=str;
1.137 paf 75: while(char* eol=(char*)memchr(bol, '\r', eob -bol)) {
1.72 parser 76: size_t len=eol-bol;
77: if(dest!=bol)
1.126 paf 78: memcpy(dest, bol, len);
1.72 parser 79: dest+=len;
1.126 paf 80: *dest++='\n';
1.72 parser 81:
1.126 paf 82: if(&eol[1]<eob && eol[1]=='\n') { // \r, \n = DOS
1.72 parser 83: bol=eol+2;
1.154 paf 84: length--;
1.126 paf 85: } else // \r, not \n = Macintosh
1.72 parser 86: bol=eol+1;
87: }
1.154 paf 88: // last piece without \r
1.72 parser 89: if(dest!=bol)
1.126 paf 90: memcpy(dest, bol, eob-bol);
1.154 paf 91: str[length]=0; // terminating
1.72 parser 92: }
1.18 paf 93:
1.154 paf 94: char* file_read_text(Request_charsets& charsets,
1.229 misha 95: const String& file_spec,
96: bool fail_on_read_problem,
1.234 misha 97: HashStringValue* params,
98: bool transcode_result) {
1.154 paf 99: File_read_result file=
1.234 misha 100: file_read(charsets, file_spec, true, params, fail_on_read_problem, 0, 0, 0, transcode_result);
1.154 paf 101: return file.success?file.str:0;
1.126 paf 102: }
103:
1.206 paf 104: /// these options were handled but not checked elsewhere, now check them
1.214 paf 105: int pa_get_valid_file_options_count(HashStringValue& options)
1.206 paf 106: {
107: int result=0;
108: if(options.get(PA_SQL_LIMIT_NAME))
109: result++;
110: if(options.get(PA_SQL_OFFSET_NAME))
111: result++;
112: if(options.get(PA_COLUMN_SEPARATOR_NAME))
113: result++;
114: if(options.get(PA_COLUMN_ENCLOSER_NAME))
115: result++;
1.223 misha 116: if(options.get(PA_CHARSET_NAME))
117: result++;
1.206 paf 118: return result;
119: }
120:
1.123 paf 121: #ifndef DOXYGEN
122: struct File_read_action_info {
1.154 paf 123: char **data; size_t *data_size;
1.188 paf 124: char* buf; size_t offset; size_t count;
1.126 paf 125: };
1.123 paf 126: #endif
1.154 paf 127: static void file_read_action(
1.229 misha 128: struct stat& finfo,
129: int f,
130: const String& file_spec, const char* /*fname*/, bool as_text,
131: void *context) {
1.126 paf 132: File_read_action_info& info=*static_cast<File_read_action_info *>(context);
1.188 paf 133: size_t to_read_size=info.count;
134: if(!to_read_size)
135: to_read_size=(size_t)finfo.st_size;
136: assert( !(info.buf && as_text) );
137: if(to_read_size) {
138: if(info.offset)
139: lseek(f, info.offset, SEEK_SET);
140: *info.data=info.buf
141: ? info.buf
142: : new(PointerFreeGC) char[to_read_size+(as_text?1:0)];
1.126 paf 143: *info.data_size=(size_t)read(f, *info.data, to_read_size);
1.123 paf 144:
145: if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size)
1.126 paf 146: throw Exception(0,
1.123 paf 147: &file_spec,
1.173 paf 148: "read failed: actually read %u bytes count not in [0..%u] valid range",
1.126 paf 149: *info.data_size, to_read_size);
1.123 paf 150: } else { // empty file
1.209 paf 151: // for both, text and binary: for text we need that terminator, for binary we need nonzero pointer to be able to save such files
152: *info.data=new(PointerFreeGC) char[1];
153: *(char*)(*info.data)=0;
1.123 paf 154: *info.data_size=0;
155: return;
156: }
1.126 paf 157: }
1.154 paf 158: File_read_result file_read(Request_charsets& charsets, const String& file_spec,
1.229 misha 159: bool as_text, HashStringValue *params,
160: bool fail_on_read_problem,
1.234 misha 161: char* buf, size_t offset, size_t count, bool transcode_text_result) {
1.167 paf 162: File_read_result result={false, 0, 0, 0};
1.154 paf 163: if(file_spec.starts_with("http://")) {
1.203 paf 164: if(offset || count)
1.224 misha 165: throw Exception(PARSER_RUNTIME,
1.203 paf 166: 0,
167: "offset and load options are not supported for HTTP:// file load");
168:
1.126 paf 169: // fail on read problem
1.234 misha 170: File_read_http_result http=pa_internal_file_read_http(charsets, file_spec, as_text, params, transcode_text_result);
1.154 paf 171: result.success=true;
172: result.str=http.str;
173: result.length=http.length;
174: result.headers=http.headers;
1.126 paf 175: } else {
1.206 paf 176: if(params) {
1.214 paf 177: int valid_options=pa_get_valid_file_options_count(*params);
1.206 paf 178: if(valid_options!=params->count())
1.224 misha 179: throw Exception(PARSER_RUNTIME,
1.206 paf 180: 0,
181: "invalid option passed");
182: }
1.161 paf 183:
1.188 paf 184: File_read_action_info info={&result.str, &result.length,
185: buf, offset, count};
1.154 paf 186: result.success=file_read_action_under_lock(file_spec,
1.126 paf 187: "read", file_read_action, &info,
188: as_text, fail_on_read_problem);
1.223 misha 189:
1.234 misha 190: if(result.length && as_text && params && transcode_text_result) {
1.223 misha 191: if( Value* vcharset_name=params->get(PA_CHARSET_NAME) ) {
192: Charset asked_charset=::charsets.get(vcharset_name->as_string().
193: change_case(charsets.source(), String::CC_UPPER));
194:
195: String::C body=String::C(result.str, result.length);
196: body=Charset::transcode(body, asked_charset, charsets.source());
197:
198: result.str=const_cast<char *>(body.str); // hacking a little
199: result.length=body.length;
200: }
201: }
1.126 paf 202: }
1.123 paf 203:
1.154 paf 204: if(result.success && as_text) {
1.131 paf 205: // UTF-8 signature: EF BB BF
1.154 paf 206: if(result.length>=3) {
207: char *in=(char *)result.str;
1.159 paf 208: if(strncmp(in, "\xEF\xBB\xBF", 3)==0) {
1.154 paf 209: result.str=in+3; result.length-=3;// skip prefix
1.131 paf 210: }
211: }
212:
1.154 paf 213: fix_line_breaks((char *)(result.str), result.length);
1.123 paf 214: }
1.126 paf 215:
216: return result;
1.123 paf 217: }
218:
1.154 paf 219: #ifdef PA_SAFE_MODE
220: void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname) {
221: if(finfo.st_uid/*foreign?*/!=geteuid()
222: && finfo.st_gid/*foreign?*/!=getegid())
1.224 misha 223: throw Exception(PARSER_RUNTIME,
1.154 paf 224: &file_spec,
225: "parser is in safe mode: "
226: "reading files of foreign group and user disabled "
227: "[recompile parser with --disable-safe-mode configure option], "
228: "actual filename '%s', "
229: "fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)",
230: fname,
231: finfo.st_uid, geteuid(),
232: finfo.st_gid, getegid());
233: }
234: #endif
1.149 paf 235:
1.154 paf 236: bool file_read_action_under_lock(const String& file_spec,
1.126 paf 237: const char* action_name, File_read_action action, void *context,
238: bool as_text,
1.123 paf 239: bool fail_on_read_problem) {
1.154 paf 240: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.33 paf 241: int f;
242:
243: // first open, next stat:
1.45 paf 244: // directory update of NTFS hard links performed on open.
1.33 paf 245: // ex:
246: // a.html:^test[] and b.html hardlink to a.html
247: // user inserts ! before ^test in a.html
1.126 paf 248: // directory entry of b.html in NTFS not updated at once,
1.35 paf 249: // they delay update till open, so we would receive "!^test[" string
250: // if would do stat, next open.
1.123 paf 251: // later: it seems, even this does not help sometimes
1.229 misha 252: if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) {
1.123 paf 253: try {
1.162 paf 254: if(pa_lock_shared_blocking(f)!=0)
1.126 paf 255: throw Exception("file.lock",
1.123 paf 256: &file_spec,
257: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 258: strerror(errno), errno, fname);
1.123 paf 259:
1.124 paf 260: struct stat finfo;
261: if(stat(fname, &finfo)!=0)
262: throw Exception("file.missing", // hardly possible: we just opened it OK
263: &file_spec,
264: "stat failed: %s (%d), actual filename '%s'",
1.154 paf 265: strerror(errno), errno, fname);
1.124 paf 266:
1.140 paf 267: #ifdef PA_SAFE_MODE
1.149 paf 268: check_safe_mode(finfo, file_spec, fname);
1.105 paf 269: #endif
1.32 paf 270:
1.154 paf 271: action(finfo, f, file_spec, fname, as_text, context);
1.123 paf 272: } catch(...) {
1.162 paf 273: pa_unlock(f);close(f);
1.123 paf 274: if(fail_on_read_problem)
1.154 paf 275: rethrow;
1.123 paf 276: return false;
277: }
1.87 paf 278:
1.162 paf 279: pa_unlock(f);close(f);
1.72 parser 280: return true;
1.229 misha 281: } else {
1.118 paf 282: if(fail_on_read_problem)
1.126 paf 283: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.118 paf 284: &file_spec,
1.123 paf 285: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 286: action_name, strerror(errno), errno, fname);
1.118 paf 287: return false;
288: }
1.8 paf 289: }
290:
1.202 paf 291: void create_dir_for_file(const String& file_spec) {
1.63 parser 292: size_t pos_after=1;
1.154 paf 293: size_t pos_before;
294: while((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND) {
295: mkdir(file_spec.mid(0, pos_before).cstr(String::L_FILE_SPEC), 0775);
1.63 parser 296: pos_after=pos_before+1;
297: }
298: }
299:
1.98 paf 300: bool file_write_action_under_lock(
1.28 paf 301: const String& file_spec,
1.225 misha 302: const char* action_name,
303: File_write_action action,
304: void *context,
1.126 paf 305: bool as_text,
306: bool do_append,
307: bool do_block,
1.110 paf 308: bool fail_on_lock_problem) {
1.154 paf 309: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.28 paf 310: int f;
1.80 paf 311: if(access(fname, W_OK)!=0) // no
1.126 paf 312: create_dir_for_file(file_spec);
1.50 paf 313:
1.80 paf 314: if((f=open(fname,
315: O_CREAT|O_RDWR
316: |(as_text?_O_TEXT:_O_BINARY)
1.138 paf 317: |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) {
1.162 paf 318: if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) {
1.126 paf 319: Exception e("file.lock",
1.110 paf 320: &file_spec,
321: "shared lock failed: %s (%d), actual filename '%s'",
1.154 paf 322: strerror(errno), errno, fname);
1.126 paf 323: close(f);
1.110 paf 324: if(fail_on_lock_problem)
325: throw e;
1.98 paf 326: return false;
327: }
1.96 paf 328:
1.158 paf 329: try {
1.126 paf 330: action(f, context);
1.158 paf 331: } catch(...) {
1.138 paf 332: #ifdef HAVE_FTRUNCATE
1.104 paf 333: if(!do_append)
1.125 paf 334: ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower
1.138 paf 335: #endif
1.162 paf 336: pa_unlock(f);close(f);
1.154 paf 337: rethrow;
1.158 paf 338: }
1.80 paf 339:
1.138 paf 340: #ifdef HAVE_FTRUNCATE
1.104 paf 341: if(!do_append)
1.125 paf 342: ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]
1.138 paf 343: #endif
1.162 paf 344: pa_unlock(f);close(f);
1.98 paf 345: return true;
1.80 paf 346: } else
1.126 paf 347: throw Exception(errno==EACCES?"file.access":0,
1.80 paf 348: &file_spec,
1.96 paf 349: "%s failed: %s (%d), actual filename '%s'",
1.154 paf 350: action_name, strerror(errno), errno, fname);
1.96 paf 351: // here should be nothing, see rethrow above
352: }
353:
354: #ifndef DOXYGEN
355: struct File_write_action_info {
1.154 paf 356: const char* str; size_t length;
1.126 paf 357: };
1.96 paf 358: #endif
359: static void file_write_action(int f, void *context) {
1.126 paf 360: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
1.154 paf 361: if(info.length) {
362: int written=write(f, info.str, info.length);
1.116 paf 363: if(written<0)
1.126 paf 364: throw Exception(0,
365: 0,
366: "write failed: %s (%d)", strerror(errno), errno);
1.113 paf 367: }
1.96 paf 368: }
369: void file_write(
370: const String& file_spec,
1.154 paf 371: const char* data, size_t size,
1.126 paf 372: bool as_text,
1.96 paf 373: bool do_append) {
1.126 paf 374: File_write_action_info info={data, size};
1.225 misha 375:
1.98 paf 376: file_write_action_under_lock(
1.154 paf 377: file_spec,
1.225 misha 378: "write",
379: file_write_action,
380: &info,
1.154 paf 381: as_text,
382: do_append);
1.30 paf 383: }
384:
1.63 parser 385: // throws nothing! [this is required in file_move & file_delete]
1.50 paf 386: static void rmdir(const String& file_spec, size_t pos_after) {
1.154 paf 387: size_t pos_before;
388: if((pos_before=file_spec.pos('/', pos_after))!=STRING_NOT_FOUND)
1.126 paf 389: rmdir(file_spec, pos_before+1);
1.50 paf 390:
1.154 paf 391: rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC));
1.50 paf 392: }
1.164 paf 393: bool file_delete(const String& file_spec, bool fail_on_problem) {
1.154 paf 394: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.54 parser 395: if(unlink(fname)!=0)
1.164 paf 396: if(fail_on_problem)
1.126 paf 397: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.93 paf 398: &file_spec,
399: "unlink failed: %s (%d), actual filename '%s'",
1.154 paf 400: strerror(errno), errno, fname);
1.93 paf 401: else
402: return false;
1.50 paf 403:
1.126 paf 404: rmdir(file_spec, 1);
1.93 paf 405: return true;
1.60 parser 406: }
1.95 paf 407: void file_move(const String& old_spec, const String& new_spec) {
1.154 paf 408: const char* old_spec_cstr=old_spec.cstr(String::L_FILE_SPEC);
409: const char* new_spec_cstr=new_spec.cstr(String::L_FILE_SPEC);
1.63 parser 410:
1.126 paf 411: create_dir_for_file(new_spec);
1.63 parser 412:
1.60 parser 413: if(rename(old_spec_cstr, new_spec_cstr)!=0)
1.126 paf 414: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
1.60 parser 415: &old_spec,
416: "rename failed: %s (%d), actual filename '%s' to '%s'",
1.154 paf 417: strerror(errno), errno, old_spec_cstr, new_spec_cstr);
1.63 parser 418:
1.126 paf 419: rmdir(old_spec, 1);
1.31 paf 420: }
421:
1.51 paf 422:
1.126 paf 423: bool entry_exists(const char* fname, struct stat *afinfo) {
1.118 paf 424: struct stat lfinfo;
425: bool result=stat(fname, &lfinfo)==0;
426: if(afinfo)
427: *afinfo=lfinfo;
428: return result;
1.119 paf 429: }
430:
431: bool entry_exists(const String& file_spec) {
1.154 paf 432: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
1.126 paf 433: return entry_exists(fname, 0);
1.118 paf 434: }
435:
1.51 paf 436: static bool entry_readable(const String& file_spec, bool need_dir) {
1.154 paf 437: char* fname=file_spec.cstrm(String::L_FILE_SPEC);
1.120 paf 438: if(need_dir) {
1.126 paf 439: size_t size=strlen(fname);
1.120 paf 440: while(size) {
1.126 paf 441: char c=fname[size-1];
1.120 paf 442: if(c=='/' || c=='\\')
443: fname[--size]=0;
444: else
445: break;
446: }
447: }
1.51 paf 448: struct stat finfo;
1.118 paf 449: if(access(fname, R_OK)==0 && entry_exists(fname, &finfo)) {
1.109 paf 450: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
1.51 paf 451: return is_dir==need_dir;
452: }
453: return false;
454: }
1.215 paf 455: bool file_exist(const String& file_spec) {
1.126 paf 456: return entry_readable(file_spec, false);
1.51 paf 457: }
1.215 paf 458: bool dir_exists(const String& file_spec) {
1.126 paf 459: return entry_readable(file_spec, true);
1.65 parser 460: }
1.215 paf 461: const String* file_exist(const String& path, const String& name) {
1.154 paf 462: String& result=*new String(path);
463: result << "/";
464: result << name;
1.215 paf 465: return file_exist(result)?&result:0;
1.43 paf 466: }
467: bool file_executable(const String& file_spec) {
1.154 paf 468: return access(file_spec.cstr(String::L_FILE_SPEC), X_OK)==0;
1.44 paf 469: }
470:
1.64 parser 471: bool file_stat(const String& file_spec,
1.229 misha 472: size_t& rsize,
473: time_t& ratime,
474: time_t& rmtime,
475: time_t& rctime,
476: bool fail_on_read_problem) {
1.154 paf 477: const char* fname=file_spec.cstr(String::L_FILE_SPEC);
478: struct stat finfo;
1.44 paf 479: if(stat(fname, &finfo)!=0)
1.64 parser 480: if(fail_on_read_problem)
1.126 paf 481: throw Exception("file.missing",
1.67 parser 482: &file_spec,
483: "getting file size failed: %s (%d), real filename '%s'",
1.154 paf 484: strerror(errno), errno, fname);
1.64 parser 485: else
486: return false;
1.58 parser 487: rsize=finfo.st_size;
488: ratime=finfo.st_atime;
489: rmtime=finfo.st_mtime;
490: rctime=finfo.st_ctime;
1.64 parser 491: return true;
1.18 paf 492: }
493:
1.126 paf 494: char* getrow(char* *row_ref, char delim) {
1.229 misha 495: char* result=*row_ref;
496: if(result) {
1.126 paf 497: *row_ref=strchr(result, delim);
1.8 paf 498: if(*row_ref)
499: *((*row_ref)++)=0;
500: else if(!*result)
501: return 0;
1.229 misha 502: }
503: return result;
1.8 paf 504: }
505:
1.126 paf 506: char* lsplit(char* string, char delim) {
1.229 misha 507: if(string) {
1.126 paf 508: char* v=strchr(string, delim);
1.8 paf 509: if(v) {
510: *v=0;
511: return v+1;
512: }
1.229 misha 513: }
514: return 0;
1.8 paf 515: }
516:
1.126 paf 517: char* lsplit(char* *string_ref, char delim) {
1.229 misha 518: char* result=*string_ref;
1.126 paf 519: char* next=lsplit(*string_ref, delim);
1.229 misha 520: *string_ref=next;
521: return result;
1.9 paf 522: }
523:
1.126 paf 524: char* rsplit(char* string, char delim) {
1.229 misha 525: if(string) {
1.126 paf 526: char* v=strrchr(string, delim);
1.18 paf 527: if(v) {
1.9 paf 528: *v=0;
529: return v+1;
530: }
1.229 misha 531: }
532: return NULL;
1.10 paf 533: }
534:
1.229 misha 535:
536: // format: %[flags][width][.precision]type http://msdn.microsoft.com/ru-ru/library/56e442dc(en-us,VS.80).aspx
537: // flags: '-', '+', ' ', '#', '0' http://msdn.microsoft.com/ru-ru/library/8aky45ct(en-us,VS.80).aspx
538: // width, precision: non negative decimal number
539: enum FormatType {
540: FormatInvalid,
541: FormatInt,
542: FormatUInt,
543: FormatDouble
544: };
545: FormatType format_type(char* fmt){
546: enum FormatState {
547: Percent,
548: Flags,
549: Width,
550: Precision,
551: Done
552: } state=Percent;
553:
554: FormatType result=FormatInvalid;
555:
556: char* pos=fmt;
557: while(char c=*(pos++)){
558: switch(state){
559: case Percent:
560: if(c=='%'){
561: state=Flags;
562: } else {
563: return FormatInvalid; // 1st char must be '%' only
564: }
565: break;
566: case Flags:
567: if(strchr("-+ #0", c)!=0){
568: break;
569: }
570: // go to the next step
571: case Width:
572: if(c=='.'){
573: state=Precision;
574: break;
575: }
576: // go to the next step
577: case Precision:
578: if(c>='0' && c<='9'){
579: if(state == Flags) state=Width; // no more flags
580: break;
581: } else if(c=='d' || c=='i'){
582: result=FormatInt;
583: } else if(strchr("feEgG", c)!=0){
584: result=FormatDouble;
585: } else if(strchr("uoxX", c)!=0){
586: result=FormatUInt;
587: } else {
588: return FormatInvalid; // invalid char
589: }
590: state=Done;
591: break;
592: case Done:
593: return FormatInvalid; // no chars allowed after 'type'
594: }
595: }
596: return result;
597: }
598:
599:
1.154 paf 600: const char* format(double value, char* fmt) {
1.229 misha 601: char local_buf[MAX_NUMBER];
1.235 ! misha 602: int size=-1;
1.229 misha 603:
604: if(fmt && strlen(fmt)){
605: switch(format_type(fmt)){
606: case FormatDouble:
607: size=snprintf(local_buf, sizeof(local_buf), fmt, value);
608: break;
609: case FormatInt:
610: size=snprintf(local_buf, sizeof(local_buf), fmt, (int)value);
611: break;
612: case FormatUInt:
1.126 paf 613: size=snprintf(local_buf, sizeof(local_buf), fmt, (uint)value);
1.229 misha 614: break;
615: case FormatInvalid:
616: throw Exception(PARSER_RUNTIME,
617: 0,
618: "Incorrect format string '%s' was specified.", fmt);
619: }
620: } else
621: size=snprintf(local_buf, sizeof(local_buf), "%d", (int)value);
622:
623: if(size < 0 || size >= MAX_NUMBER-1){ // on win32 we manually reduce max size while printing
624: throw Exception(PARSER_RUNTIME,
625: 0,
626: "Error occure white executing snprintf with format string '%s'.", fmt);
627: }
628:
1.235 ! misha 629: return pa_strdup(local_buf, (size_t)size);
1.12 paf 630: }
631:
1.36 paf 632: size_t stdout_write(const void *buf, size_t size) {
1.12 paf 633: #ifdef WIN32
1.187 paf 634: size_t to_write = size;
1.12 paf 635: do{
1.154 paf 636: int chunk_written=fwrite(buf, 1, min((size_t)8*0x400, size), stdout);
1.12 paf 637: if(chunk_written<=0)
638: break;
639: size-=chunk_written;
1.36 paf 640: buf=((const char*)buf)+chunk_written;
1.126 paf 641: } while(size>0);
1.12 paf 642:
1.187 paf 643: return to_write-size;
1.12 paf 644: #else
1.126 paf 645: return fwrite(buf, 1, size, stdout);
1.12 paf 646: #endif
1.2 paf 647: }
1.14 paf 648:
1.229 misha 649: enum EscapeState {
650: EscapeRest,
651: EscapeFirst,
652: EscapeSecond,
653: EscapeUnicode
654: };
655: /*
1.154 paf 656: char* unescape_chars(const char* cp, int len) {
657: char* s=new(PointerFreeGC) char[len + 1];
1.229 misha 658: EscapeState escapeState=EscapeRest;
1.216 paf 659: uint escapedValue=0;
1.14 paf 660: int srcPos=0;
661: int dstPos=0;
662: while(srcPos < len) {
1.193 paf 663: uchar ch=(uchar)cp[srcPos];
1.14 paf 664: switch(escapeState) {
665: case EscapeRest:
1.229 misha 666: if(ch=='%') {
667: escapeState=EscapeFirst;
668: } else if(ch=='+'){
669: s[dstPos++]=' ';
670: } else {
671: s[dstPos++]=ch;
672: }
673: break;
1.14 paf 674: case EscapeFirst:
1.229 misha 675: escapedValue=hex_value[ch] << 4;
676: escapeState=EscapeSecond;
677: break;
1.14 paf 678: case EscapeSecond:
1.229 misha 679: escapedValue +=hex_value[ch];
680: s[dstPos++]=(char)escapedValue;
681: escapeState=EscapeRest;
682: break;
1.14 paf 683: }
1.126 paf 684: srcPos++;
1.14 paf 685: }
686: s[dstPos]=0;
687: return s;
1.24 paf 688: }
1.229 misha 689: */
690:
1.232 misha 691: char* unescape_chars(const char* cp, int len, Charset* charset){
1.230 misha 692: char* s=new(PointerFreeGC) char[len + 1]; // enough (%uXXXX==6 bytes, max utf-8 char length==6 bytes)
693: char* dst=s;
1.229 misha 694: EscapeState escapeState=EscapeRest;
695: uint escapedValue=0;
696: int srcPos=0;
1.230 misha 697: short int jsCnt=0;
1.229 misha 698: while(srcPos < len) {
699: uchar c=(uchar)cp[srcPos];
700: if(c=='%'){
701: escapeState=EscapeFirst;
702: } else {
703: switch(escapeState) {
704: case EscapeRest:
705: if(c=='+'){
1.230 misha 706: *dst++=' ';
1.229 misha 707: } else {
1.230 misha 708: *dst++=c;
1.229 misha 709: }
710: break;
711: case EscapeFirst:
1.232 misha 712: if(charset && c=='u'){
1.229 misha 713: // escaped unicode value: %u0430
714: jsCnt=0;
715: escapedValue=0;
716: escapeState=EscapeUnicode;
717: } else {
1.231 misha 718: if(isxdigit(c)){
1.229 misha 719: escapedValue=hex_value[c] << 4;
720: escapeState=EscapeSecond;
721: } else {
1.230 misha 722: *dst++=c;
1.229 misha 723: escapeState=EscapeRest;
724: }
725: }
726: break;
727: case EscapeSecond:
1.231 misha 728: if(isxdigit(c)){
1.229 misha 729: escapedValue+=hex_value[c];
1.230 misha 730: *dst++=(char)escapedValue;
1.229 misha 731: }
732: escapeState=EscapeRest;
733: break;
734: case EscapeUnicode:
1.231 misha 735: if(isxdigit(c)){
1.229 misha 736: escapedValue=(escapedValue << 4) + hex_value[c];
737: if(++jsCnt==4){
1.230 misha 738: // transcode utf8 char to client charset (we can lost some chars here)
1.232 misha 739: charset->store_Char((XMLByte*&)dst, (XMLCh)escapedValue, '?');
1.229 misha 740: escapeState=EscapeRest;
741: }
742: } else {
743: // not full unicode value
744: escapeState=EscapeRest;
745: }
746: break;
747: }
748: }
749:
750: srcPos++;
751: }
752:
1.230 misha 753: *dst=0; // zero-termination
1.229 misha 754: return s;
755: }
1.24 paf 756:
757: #ifdef WIN32
1.126 paf 758: void back_slashes_to_slashes(char* s) {
1.24 paf 759: if(s)
760: for(; *s; s++)
761: if(*s=='\\')
1.126 paf 762: *s='/';
1.24 paf 763: }
1.42 paf 764: /*
1.126 paf 765: void slashes_to_back_slashes(char* s) {
1.42 paf 766: if(s)
767: for(; *s; s++)
768: if(*s=='/')
1.126 paf 769: *s='\\';
1.42 paf 770: }
771: */
1.24 paf 772: #endif
1.41 paf 773:
1.231 misha 774: bool StrStartFromNC(const char* str, const char* substr, bool equal){
1.41 paf 775: while(true) {
1.231 misha 776: if(!(*substr)){
777: if(!(*str))
1.41 paf 778: return true;
779: else
1.231 misha 780: return !equal;
781: }
782: if(!(*str))
783: return false;
784: if(isalpha((unsigned char)*str)) {
785: if(tolower((unsigned char)*str)!=tolower((unsigned char)*substr))
1.41 paf 786: return false;
1.231 misha 787: } else if((*str) != (*substr))
1.41 paf 788: return false;
1.231 misha 789: str++;
790: substr++;
1.41 paf 791: }
1.57 parser 792: }
793:
1.232 misha 794: size_t strpos(const char *str, const char *substr) {
795: const char *p = strstr(str, substr);
796: return (p==0)?STRING_NOT_FOUND:p-str;
797: }
798:
799: // content-type: xxx; charset=WE-NEED-THIS
800: // content-type: xxx; charset="WE-NEED-THIS"
801: // content-type: xxx; charset="WE-NEED-THIS";
1.233 misha 802: Charset* detect_charset(const char* content_type){
803: if(content_type){
804: size_t len=strlen(content_type);
805: char* CONTENT_TYPE=new(PointerFreeGC) char[len+1];
806: memcpy(CONTENT_TYPE, content_type, len);
807: for(char *p=CONTENT_TYPE; *p; p++)
808: *p=(char)toupper((unsigned char)*p);
809:
810: if(const char* begin=strstr(CONTENT_TYPE, "CHARSET=")){
811: begin+=8; // skip "CHARSET="
812: char* end=0;
813: if(*begin && (*begin=='"' || *begin =='\'')){
814: char quote=*begin;
815: begin++;
816: end=(char*)strchr(begin, quote);
817: }
818: if(!end)
819: end=(char*)strchr(begin, ';');
820:
821: size_t len;
822: if(end){
823: *end=0; // terminator
824: len=end-begin;
825: } else {
826: len=strlen(begin);
827: }
828:
829: String::Body NAME=String::Body(begin, len);
830: return &charsets.get(NAME);
1.232 misha 831: }
832: }
833: return 0;
834: }
835:
1.233 misha 836: Charset* detect_charset(Charset& source_charset, const String& content_type){
837: const String& CONTENT_TYPE=content_type.change_case(source_charset, String::CC_UPPER);
838: size_t begin=CONTENT_TYPE.pos("CHARSET=");
839: if(begin!=STRING_NOT_FOUND) {
840: begin+=8; // skip "CHARSET="
841: size_t end=STRING_NOT_FOUND;
842:
843: if(CONTENT_TYPE.pos('"', begin)==begin){
844: begin++;
845: end=CONTENT_TYPE.pos('"', begin);
846: } else if(CONTENT_TYPE.pos('\'', begin)==begin){
847: begin++;
848: end=CONTENT_TYPE.pos('\'', begin);
849: }
850:
851: if(end==STRING_NOT_FOUND)
852: end=CONTENT_TYPE.pos(';', begin);
853:
854: if(end==STRING_NOT_FOUND)
855: end=CONTENT_TYPE.length();
1.232 misha 856:
1.233 misha 857: const String::Body NAME=CONTENT_TYPE.mid(begin, end);
858: return &charsets.get(NAME);
859: }
860: return 0;
1.232 misha 861: }
862:
863:
1.84 paf 864: static bool isLeap(int year) {
1.229 misha 865: return !(
866: (year % 4) || ((year % 400) && !(year % 100))
867: );
1.57 parser 868: }
869:
870: int getMonthDays(int year, int month) {
1.220 misha 871: static int monthDays[]={
1.229 misha 872: 31,
873: 28,
874: 31,
875: 30,
876: 31,
877: 30,
878: 31,
879: 31,
880: 30,
881: 31,
882: 30,
883: 31
884: };
1.228 misha 885: return (month == 1 /* january -- 0 */ && isLeap(year)) ? 29 : monthDays[month];
1.41 paf 886: }
1.69 parser 887:
1.226 misha 888: int remove_crlf(char* start, char* end) {
889: char* from=start;
890: char* to=start;
891: bool skip=false;
892: while(from < end){
893: switch(*from){
894: case '\n':
895: case '\r':
896: case '\t':
897: case ' ':
898: if(!skip){
899: *to=' ';
900: to++;
901: skip=true;
902: }
903: break;
904: default:
905: if(from != to)
906: *to=*from;
907: to++;
908: skip=false;
1.69 parser 909: }
1.226 misha 910: from++;
911: }
912: return to-start;
1.91 paf 913: }
914:
915:
916: /// must be last in this file
917: #undef vsnprintf
1.126 paf 918: int __vsnprintf(char* b, size_t s, const char* f, va_list l) {
1.91 paf 919: if(!s)
920: return 0;
921:
922: int r;
923: // note: on win32& maybe somewhere else
924: // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing
925: --s;
1.172 paf 926:
927: // clients do not check for negative 's', feature: ignore such prints
928: if((ssize_t)s<0)
929: return 0;
930:
1.91 paf 931: #if _MSC_VER
932: /*
933: win32:
934: mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm
935:
1.154 paf 936: if the number of bytes to write exceeds buffer, then count bytes are written and Ö1 is returned
1.91 paf 937: */
1.126 paf 938: r=_vsnprintf(b, s, f, l);
1.91 paf 939: if(r<0)
940: r=s;
941: #else
1.126 paf 942: r=vsnprintf(b, s, f, l);
1.91 paf 943: /*
944: solaris:
945: man vsnprintf
946:
947: The snprintf() function returns the number of characters
948: formatted, that is, the number of characters that would have
949: been written to the buffer if it were large enough. If the
950: value of n is 0 on a call to snprintf(), an unspecified
951: value less than 1 is returned.
952: */
953:
954: if(r<0)
955: r=0;
1.167 paf 956: else if((size_t)r>s)
1.91 paf 957: r=s;
958: #endif
959: b[r]=0;
960: return r;
961: }
962:
1.126 paf 963: int __snprintf(char* b, size_t s, const char* f, ...) {
1.91 paf 964: va_list l;
1.126 paf 965: va_start(l, f);
966: int r=__vsnprintf(b, s, f, l);
967: va_end(l);
1.91 paf 968: return r;
1.178 paf 969: }
970:
971: /* mime64 functions are from libgmime[http://spruce.sourceforge.net/gmime/] lib */
972: /*
973: * Authors: Michael Zucchi <notzed@helixcode.com>
974: * Jeffrey Stedfast <fejj@helixcode.com>
975: *
976: * Copyright 2000 Helix Code, Inc. (www.helixcode.com)
977: *
978: * This program is free software; you can redistribute it and/or modify
979: * it under the terms of the GNU General Public License as published by
980: * the Free Software Foundation; either version 2 of the License, or
981: * (at your option) any later version.
982: *
983: * This program is distributed in the hope that it will be useful,
984: * but WITHOUT ANY WARRANTY; without even the implied warranty of
985: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
986: * GNU General Public License for more details.
987: *
988: * You should have received a copy of the GNU General Public License
989: * along with this program; if not, write to the Free Software
990: * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
991: *
992: */
993: static char *base64_alphabet =
994: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
995:
996: /**
997: * g_mime_utils_base64_encode_step:
998: * @in: input stream
999: * @inlen: length of the input
1000: * @out: output string
1001: * @state: holds the number of bits that are stored in @save
1002: * @save: leftover bits that have not yet been encoded
1003: *
1004: * Base64 encodes a chunk of data. Performs an 'encode step', only
1005: * encodes blocks of 3 characters to the output at a time, saves
1006: * left-over state in state and save (initialise to 0 on first
1007: * invocation).
1008: *
1009: * Returns the number of bytes encoded.
1010: **/
1011: static size_t
1012: g_mime_utils_base64_encode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1013: {
1.186 paf 1014: register const unsigned char *inptr;
1.178 paf 1015: register unsigned char *outptr;
1016:
1017: if (inlen <= 0)
1018: return 0;
1019:
1020: inptr = in;
1021: outptr = out;
1022:
1023: if (inlen + ((unsigned char *)save)[0] > 2) {
1024: const unsigned char *inend = in + inlen - 2;
1025: register int c1 = 0, c2 = 0, c3 = 0;
1026: register int already;
1027:
1028: already = *state;
1029:
1030: switch (((char *)save)[0]) {
1031: case 1: c1 = ((unsigned char *)save)[1]; goto skip1;
1032: case 2: c1 = ((unsigned char *)save)[1];
1033: c2 = ((unsigned char *)save)[2]; goto skip2;
1034: }
1035:
1036: /* yes, we jump into the loop, no i'm not going to change it, its beautiful! */
1037: while (inptr < inend) {
1038: c1 = *inptr++;
1039: skip1:
1040: c2 = *inptr++;
1041: skip2:
1042: c3 = *inptr++;
1043: *outptr++ = base64_alphabet [c1 >> 2];
1044: *outptr++ = base64_alphabet [(c2 >> 4) | ((c1 & 0x3) << 4)];
1045: *outptr++ = base64_alphabet [((c2 & 0x0f) << 2) | (c3 >> 6)];
1046: *outptr++ = base64_alphabet [c3 & 0x3f];
1047: /* this is a bit ugly ... */
1048: if ((++already) >= 19) {
1049: *outptr++ = '\n';
1050: already = 0;
1051: }
1052: }
1053:
1054: ((unsigned char *)save)[0] = 0;
1055: inlen = 2 - (inptr - inend);
1056: *state = already;
1057: }
1058:
1059: //d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen));
1060:
1061: if (inlen > 0) {
1062: register char *saveout;
1063:
1064: /* points to the slot for the next char to save */
1065: saveout = & (((char *)save)[1]) + ((char *)save)[0];
1066:
1067: /* inlen can only be 0 1 or 2 */
1068: switch (inlen) {
1069: case 2: *saveout++ = *inptr++;
1070: case 1: *saveout++ = *inptr++;
1071: }
1.216 paf 1072: *(char *)save = *(char *)save+(char)inlen;
1.178 paf 1073: }
1074:
1075: /*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n",
1076: (int)((char *)save)[0],
1077: (int)((char *)save)[1],
1078: (int)((char *)save)[2]));*/
1079:
1080: return (outptr - out);
1081: }
1082:
1083: /**
1084: * g_mime_utils_base64_encode_close:
1085: * @in: input stream
1086: * @inlen: length of the input
1087: * @out: output string
1088: * @state: holds the number of bits that are stored in @save
1089: * @save: leftover bits that have not yet been encoded
1090: *
1091: * Base64 encodes the input stream to the output stream. Call this
1092: * when finished encoding data with g_mime_utils_base64_encode_step to
1093: * flush off the last little bit.
1094: *
1095: * Returns the number of bytes encoded.
1096: **/
1097: static size_t
1098: g_mime_utils_base64_encode_close (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1099: {
1100: unsigned char *outptr = out;
1101: int c1, c2;
1102:
1103: if (inlen > 0)
1104: outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save);
1105:
1106: c1 = ((unsigned char *)save)[1];
1107: c2 = ((unsigned char *)save)[2];
1108:
1109: switch (((unsigned char *)save)[0]) {
1110: case 2:
1111: outptr[2] = base64_alphabet [(c2 & 0x0f) << 2];
1112: goto skip;
1113: case 1:
1114: outptr[2] = '=';
1115: skip:
1116: outptr[0] = base64_alphabet [c1 >> 2];
1117: outptr[1] = base64_alphabet [c2 >> 4 | ((c1 & 0x3) << 4)];
1118: outptr[3] = '=';
1119: outptr += 4;
1120: break;
1121: }
1122:
1123: *outptr++ = 0;
1124:
1125: *save = 0;
1126: *state = 0;
1127:
1128: return (outptr - out);
1129: }
1130:
1.210 paf 1131: static unsigned char gmime_base64_rank[256] = {
1132: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1133: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1134: 255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
1135: 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
1136: 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
1137: 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
1138: 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
1139: 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
1140: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1141: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1142: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1143: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1144: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1145: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1146: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1147: 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
1148: };
1149:
1150: /**
1151: * g_mime_utils_base64_decode_step:
1152: * @in: input stream
1153: * @inlen: max length of data to decode
1154: * @out: output stream
1155: * @state: holds the number of bits that are stored in @save
1156: * @save: leftover bits that have not yet been decoded
1157: *
1158: * Decodes a chunk of base64 encoded data.
1159: *
1160: * Returns the number of bytes decoded (which have been dumped in @out).
1161: **/
1162: size_t
1163: g_mime_utils_base64_decode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save)
1164: {
1.213 paf 1165: const unsigned char *inptr;
1166: unsigned char *outptr;
1.210 paf 1167: const unsigned char *inend;
1.213 paf 1168: int saved;
1.210 paf 1169: unsigned char c;
1170: int i;
1171:
1172: inend = in + inlen;
1173: outptr = out;
1174:
1175: /* convert 4 base64 bytes to 3 normal bytes */
1176: saved = *save;
1177: i = *state;
1178: inptr = in;
1179: while (inptr < inend) {
1180: c = gmime_base64_rank[*inptr++];
1181: if (c != 0xff) {
1182: saved = (saved << 6) | c;
1183: i++;
1184: if (i == 4) {
1.217 paf 1185: *outptr++ = (unsigned char)(saved >> 16);
1186: *outptr++ = (unsigned char)(saved >> 8);
1187: *outptr++ = (unsigned char)(saved);
1.210 paf 1188: i = 0;
1189: }
1190: }
1191: }
1192:
1193: *save = saved;
1194: *state = i;
1195:
1196: /* quick scan back for '=' on the end somewhere */
1197: /* fortunately we can drop 1 output char for each trailing = (upto 2) */
1198: i = 2;
1199: while (inptr > in && i) {
1200: inptr--;
1201: if (gmime_base64_rank[*inptr] != 0xff) {
1202: if (*inptr == '=' && outptr > out)
1203: outptr--;
1204: i--;
1205: }
1206: }
1207:
1208: /* if i != 0 then there is a truncation error! */
1209: return (outptr - out);
1210: }
1211:
1212:
1213: char* pa_base64_encode(const char *in, size_t in_size)
1.178 paf 1214: {
1215: /* wont go to more than 2x size (overly conservative) */
1.210 paf 1216: char* result=new(PointerFreeGC) char[in_size * 2 + 6];
1.178 paf 1217: int state=0;
1218: int save=0;
1.183 paf 1219: #ifndef NDEBUG
1220: size_t filled=
1221: #endif
1.210 paf 1222: g_mime_utils_base64_encode_close ((const unsigned char*)in, in_size,
1.178 paf 1223: (unsigned char*)result, &state, &save);
1.210 paf 1224: assert(filled <= in_size * 2 + 6);
1.178 paf 1225:
1226: return result;
1.98 paf 1227: }
1.210 paf 1228:
1.222 misha 1229:
1230: char* pa_base64_encode(const String& file_spec)
1231: {
1232: unsigned char* base64=0;
1233: File_base64_action_info info={&base64};
1234:
1235: file_read_action_under_lock(file_spec,
1236: "pa_base64_encode", file_base64_file_action, &info);
1237:
1238: return (char*)base64;
1239: }
1240:
1241:
1242: static void file_base64_file_action(
1.229 misha 1243: struct stat& finfo,
1244: int f,
1245: const String&, const char* /*fname*/, bool,
1246: void *context) {
1.222 misha 1247:
1248: if(finfo.st_size) {
1249: File_base64_action_info& info=*static_cast<File_base64_action_info *>(context);
1250: *info.base64=new(PointerFreeGC) unsigned char[finfo.st_size * 2 + 6];
1251: unsigned char* base64 = *info.base64;
1252: int state=0;
1253: int save=0;
1254: int nCount;
1255: do {
1256: unsigned char buffer[FILE_BUFFER_SIZE];
1257: nCount = file_block_read(f, buffer, sizeof(buffer));
1258: if( nCount ){
1259: size_t filled=g_mime_utils_base64_encode_step ((const unsigned char*)buffer, nCount, base64, &state, &save);
1260: base64+=filled;
1261: }
1262: } while(nCount > 0);
1263: g_mime_utils_base64_encode_close (0, 0, base64, &state, &save);
1264: }
1265: }
1266:
1.211 paf 1267: void pa_base64_decode(const char *in, size_t in_size, char*& result, size_t& result_size)
1.210 paf 1268: {
1269: /* wont go to more than had (overly conservative) */
1.211 paf 1270: result=new(PointerFreeGC) char[in_size+1/*terminator*/];
1.210 paf 1271: int state=0;
1272: int save=0;
1273: result_size=
1274: g_mime_utils_base64_decode_step ((const unsigned char*)in, in_size,
1275: (unsigned char*)result, &state, &save);
1276: assert(result_size <= in_size);
1.211 paf 1277: result[result_size]=0; // for text files
1.210 paf 1278: }
1.218 misha 1279:
1280:
1.221 misha 1281: int file_block_read(const int f, unsigned char* buffer, const size_t size){
1282: int nCount = read(f, buffer, size);
1283: if (nCount < 0)
1284: throw Exception(0,
1285: 0,
1286: "read failed: %s (%d)", strerror(errno), errno);
1287: return nCount;
1288: }
1289:
1.218 misha 1290: const unsigned long pa_crc32(const char *in, size_t in_size)
1291: {
1292: unsigned long crc32=0xFFFFFFFF;
1.220 misha 1293:
1.218 misha 1294: InitCrc32Table();
1295: for(size_t i = 0; i < in_size; i++) CalcCrc32(in[i], crc32);
1.220 misha 1296:
1.218 misha 1297: return ~crc32;
1298: }
1299:
1300: const unsigned long pa_crc32(const String& file_spec)
1301: {
1302: unsigned long crc32=0xFFFFFFFF;
1303: file_read_action_under_lock(file_spec, "crc32", file_crc32_file_action, &crc32);
1304: return ~crc32;
1305: }
1306:
1307: static void file_crc32_file_action(
1.229 misha 1308: struct stat& finfo,
1309: int f,
1310: const String&, const char* /*fname*/, bool,
1311: void *context)
1.218 misha 1312: {
1313: unsigned long& crc32=*static_cast<unsigned long *>(context);
1314: if(finfo.st_size) {
1315: InitCrc32Table();
1.220 misha 1316: int nCount=0;
1.218 misha 1317: do {
1.221 misha 1318: unsigned char buffer[FILE_BUFFER_SIZE];
1319: nCount = file_block_read(f, buffer, sizeof(buffer));
1.220 misha 1320: for(int i = 0; i < nCount; i++) CalcCrc32(buffer[i], crc32);
1321: } while(nCount > 0);
1.218 misha 1322: }
1323: }
1324:
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